Current-dependent periodicities of Si(553)-Au

Polei, Stefan; Snijders, Paul C.; Meiwes‐Broer, Karl‐Heinz; Barke, Ingo

doi:10.1103/physrevb.89.205420

Cited by 15 publications

(26 citation statements)

References 36 publications

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“…The former is assigned to the dimerization of the Au double row along the steps 22 . An ab-initio calculation confirmed that the dimerized double row Au chain in the middle of the terrace and a single honeycomb-like graphitic strip of Si atoms at the step edge is energetically most favorable 22 , which is consistent with STM 9,12,13,15,23,24 and XRD 20 studies. DFT calculations taking into account spin polarization led to the most recent structure model 6 referred to as original in the following.…”

supporting

confidence: 69%

Two-dimensional interaction of spin chains in the Si(553)-Au nanowire system

et al. 2016

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supporting

confidence: 69%

Two-dimensional interaction of spin chains in the Si(553)-Au nanowire system

et al. 2016

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“…In particular, it explains the observation of a metastable metallic phase at low temperature and the sensitivity of the critical temperature to the substrate doping. Grand canonical theories could explain other charge-donation related phenomena in atomic wires such as the reversible structural transitions in Au/Si(553) upon electron injection [48,49]. The present work suggests that variations of the substrate-induced chemical potential (e.g., with temperature or upon doping) is a key mechanism for understanding the realization of quasi-1D physics in atomic wires.…”

mentioning

confidence: 68%

Grand canonical Peierls transition in In/Si(111)

et al. 2016

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Starting from a Su-Schrieffer-Heeger-like model inferred from first-principles simulations, we show that the metal-insulator transition in In/Si(111) is a first-order grand canonical Peierls transition in which the substrate acts as an electron reservoir for the wires. This model explains naturally the existence of a metastable metallic phase over a wide temperature range below the critical temperature and the sensitivity of the transition to doping. Raman scattering experiments corroborate the softening of the two Peierls deformation modes close to the transition

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“…The Si(553)-Au and Si(557)-Au surfaces are currently the focus of intensive study due to their ability to host onedimensional spin chains [7,34,[41][42][43]. Spins are reported to be located at the step edges and to order antiferromagnetically.…”

Section: Spin Ordermentioning

confidence: 99%

Si(775)-Au atomic chains: Geometry, optical properties, and spin order

Braun

Hogan

Chandola

et al. 2017

Phys. Rev. Materials

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The geometry and electronic structure of self-assembled atomic scale Au wires on Si(775) are investigated within density functional theory. The calculated surface diagram indicates the existence of two stable configurations with Au coverages of 0.32 and 0.96 monolayers, respectively. The low-coverage structure is predicted to host an antiferromagnetic spin chain localized at the Si rest atom dangling bonds, while the high-coverage structure is characterized by a Au-induced β-√ 3-like structure on the terrace. These structural models are supported by the comparison of measured and calculated surface optical anisotropies.

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Current-dependent periodicities of Si(553)-Au

Abstract: We investigate quasi one-dimensional atomic chains on Si (553)

Cited by 15 publications

References 36 publications

Two-dimensional interaction of spin chains in the Si(553)-Au nanowire system

Two-dimensional interaction of spin chains in the Si(553)-Au nanowire system

Grand canonical Peierls transition in In/Si(111)

Si(775)-Au atomic chains: Geometry, optical properties, and spin order

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